EP 3730903 A4 20201223 - REDUNDANT RESOLVER AND ROTATION ANGLE DETECTION DEVICE USING SAME
Title (en)
REDUNDANT RESOLVER AND ROTATION ANGLE DETECTION DEVICE USING SAME
Title (de)
REDUNDANTER RESOLVER UND DREHWINKELDETEKTOR DAMIT
Title (fr)
RÉSOLVEUR REDONDANT ET DISPOSITIF DE DÉTECTION D'ANGLE DE ROTATION LE METTANT EN OEUVRE
Publication
Application
Priority
JP 2017045866 W 20171221
Abstract (en)
[origin: EP3730903A1] A worsening of manufacturability and a cost increase are restricted, and angle detection accuracy is improved, while preventing an increase in an axial direction dimension caused by redundancy. A redundant resolver is configured of a stator (3) and a rotor (4) that form a pair, wherein the rotor (4) is a rotor with a shaft angle multiplier of Nx having Nx (Nx is a natural number) salient poles, the stator (3) is such that n teeth T1 to Tn, where n is a natural number, are disposed sequentially in a circumferential direction, configuring M systems by being divided into M in the circumferential direction, and having an angle of 360/M degrees when angles of the teeth configuring one system are totaled, a one-phase excitation winding and a two-phase output winding are wound around each of the teeth T1 to Tn, excitation signals of the same frequency are applied by differing excitation circuits to the respective excitation windings, an output order per system is Nout (Nout is a natural number), and an abnormality is detected based on output signals of the M systems.
IPC 8 full level
G01D 5/20 (2006.01)
CPC (source: EP US)
G01B 7/30 (2013.01 - US); G01D 3/08 (2013.01 - EP US); G01D 5/145 (2013.01 - US); G01D 5/2046 (2013.01 - EP US)
Citation (search report)
- [XI] JP 2009098028 A 20090507 - MINEBEA CO LTD
- [A] US 2012262158 A1 20121018 - MATSUURA MUTSUMI [JP], et al
- [A] WO 2017115414 A1 20170706 - MITSUBISHI ELECTRIC CORP [JP]
- See references of WO 2019123592A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3730903 A1 20201028; EP 3730903 A4 20201223; EP 3730903 B1 20230215; CN 111819423 A 20201023; CN 111819423 B 20220329; JP 6918142 B2 20210811; JP WO2019123592 A1 20200730; US 11512977 B2 20221129; US 2020363233 A1 20201119; WO 2019123592 A1 20190627
DOCDB simple family (application)
EP 17935079 A 20171221; CN 201780097762 A 20171221; JP 2017045866 W 20171221; JP 2019559951 A 20171221; US 201716640276 A 20171221